2020-12-20 18:00:21 +00:00
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package main
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import (
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"errors"
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"fmt"
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"github.com/mstg/srpmproc/internal"
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"github.com/spf13/cobra"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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)
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var fetch = &cobra.Command{
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Use: "fetch",
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Run: runFetch,
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}
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var cdnUrl string
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func init() {
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fetch.Flags().StringVar(&cdnUrl, "cdn-url", "", "Path to CDN")
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_ = fetch.MarkFlagRequired("cdn-url")
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}
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func runFetch(_ *cobra.Command, _ []string) {
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wd, err := os.Getwd()
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if err != nil {
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log.Fatal(err)
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}
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metadataPath := ""
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err = filepath.Walk(wd, func(path string, info os.FileInfo, err error) error {
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if strings.HasSuffix(path, ".metadata") {
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if metadataPath != "" {
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return errors.New("multiple metadata files")
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}
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metadataPath = path
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}
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return nil
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})
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if err != nil {
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log.Fatal(err)
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}
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metadataFile, err := os.Open(metadataPath)
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if err != nil {
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log.Fatalf("could not open metadata file: %v", err)
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}
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fileBytes, err := ioutil.ReadAll(metadataFile)
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if err != nil {
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log.Fatalf("could not read metadata file: %v", err)
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}
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client := &http.Client{
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Transport: &http.Transport{
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DisableCompression: false,
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},
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}
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fileContent := strings.Split(string(fileBytes), "\n")
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for _, line := range fileContent {
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if strings.TrimSpace(line) == "" {
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continue
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}
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lineInfo := strings.Split(line, " ")
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hash := lineInfo[0]
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path := lineInfo[1]
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2021-01-01 16:48:52 +00:00
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url := fmt.Sprintf("%s/%s", cdnUrl, hash)
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2020-12-20 18:00:21 +00:00
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log.Printf("downloading %s", url)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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log.Fatalf("could not create new http request: %v", err)
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}
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req.Header.Set("Accept-Encoding", "*")
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resp, err := client.Do(req)
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if err != nil {
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log.Fatalf("could not download dist-git file: %v", err)
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}
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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log.Fatalf("could not read the whole dist-git file: %v", err)
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}
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err = resp.Body.Close()
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if err != nil {
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log.Fatalf("could not close body handle: %v", err)
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}
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hasher := internal.CompareHash(body, hash)
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if hasher == nil {
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log.Fatal("checksum in metadata does not match dist-git file")
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}
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err = os.MkdirAll(filepath.Dir(path), 0755)
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if err != nil {
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log.Fatalf("could create all directories")
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}
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f, err := os.Create(path)
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if err != nil {
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log.Fatalf("could not open file pointer: %v", err)
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}
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_, err = f.Write(body)
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if err != nil {
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log.Fatalf("could not copy dist-git file to in-tree: %v", err)
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}
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_ = f.Close()
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}
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}
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func init() {
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root.AddCommand(fetch)
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}
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